/* roulang page: index */
:root{
  --c-ink:#111A18;
  --c-ink-soft:#3C4643;
  --c-brand:#0F4C43;
  --c-brand-2:#1C7565;
  --c-accent:#C05B3E;
  --c-accent-dark:#A94B31;
  --c-paper:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-line:#E3DFD6;
  --c-muted:#6B746F;
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --shadow-card:0 1px 2px rgba(17,26,24,.04),0 14px 34px rgba(17,26,24,.08);
  --tr:220ms cubic-bezier(.22,.61,.36,1);
  --sec-gap:96px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-paper);
  color:var(--c-ink);
  font-family:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-brand);text-decoration:none;transition:color var(--tr);}
a:hover{color:var(--c-brand-2);}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-ink);}
h1{font-size:clamp(34px,5.2vw,56px);font-weight:800;line-height:1.16;letter-spacing:-.01em;}
h2{font-size:clamp(26px,3.4vw,40px);line-height:1.25;}
h3{font-size:20px;font-weight:650;line-height:1.4;}
h4{font-size:17px;font-weight:600;line-height:1.5;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0 0 16px;padding-left:1.4em;}
li{margin-bottom:8px;line-height:1.75;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;box-shadow:0 0 0 2px #fff;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
.row{max-width:none;margin-left:-0.9375rem;margin-right:-0.9375rem;}
.column{padding-left:0.9375rem;padding-right:0.9375rem;}
.section{padding:var(--sec-gap) 0;}
.section-tight{padding:64px 0;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--c-paper);
  border-bottom:1px solid transparent;
  transition:height var(--tr),background var(--tr),border-color var(--tr);
}
.site-header .nav-wrap{
  display:flex;
  align-items:center;
  gap:24px;
  height:88px;
  transition:height var(--tr);
}
.site-header.is-scrolled{background:var(--c-surface);border-bottom:1px solid var(--c-line);}
.site-header.is-scrolled .nav-wrap{height:64px;}
.nav-left,.nav-right{display:flex;align-items:center;gap:16px;}
.nav-left{flex:0 0 auto;}
.nav-center{display:flex;align-items:center;gap:26px;flex:1 1 auto;justify-content:center;}
.nav-right{flex:0 0 auto;}

.brand{display:flex;align-items:center;gap:10px;color:var(--c-ink);}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:34px;height:34px;border-radius:9px;
  background:var(--c-brand);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:19px;height:19px;stroke:#fff;stroke-width:2;fill:none;}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.nav-icons{display:flex;align-items:center;gap:6px;margin-left:6px;}
.nav-icon{
  width:36px;height:36px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  color:var(--c-ink-soft);
  transition:background var(--tr),color var(--tr);
}
.nav-icon svg{width:19px;height:19px;stroke:currentColor;stroke-width:2;fill:none;}
.nav-icon:hover{background:rgba(15,76,67,.08);color:var(--c-brand);}

.nav-center a{
  position:relative;
  font-size:15px;font-weight:500;color:var(--c-ink-soft);
  padding:6px 0;
  white-space:nowrap;
}
.nav-center a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;
  transition:transform var(--tr);
}
.nav-center a:hover{color:var(--c-brand);}
.nav-center a:hover::after,.nav-center a.is-active::after{transform:scaleX(1);}
.nav-center a.is-active{color:var(--c-ink);font-weight:600;}

.nav-search{position:relative;}
.nav-search input{
  width:220px;height:42px;
  border:1px solid var(--c-line);border-radius:var(--r-input);
  background:var(--c-surface);
  padding:0 14px;
  font-size:14px;color:var(--c-ink);
  transition:border-color var(--tr),box-shadow var(--tr),width var(--tr);
}
.nav-search input::placeholder{color:var(--c-muted);}
.nav-search input:focus{
  outline:none;border-color:var(--c-brand);
  box-shadow:0 0 0 3px rgba(15,76,67,.18);
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 24px;border-radius:10px;border:1px solid transparent;
  cursor:pointer;transition:background var(--tr),color var(--tr),border-color var(--tr),transform var(--tr),box-shadow var(--tr);
  white-space:nowrap;
}
.btn svg{width:16px;height:16px;stroke:currentColor;stroke-width:2;fill:none;transition:transform var(--tr);}
.btn-primary{background:var(--c-accent);color:#fff;border-radius:999px;padding:14px 28px;}
.btn-primary:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-2px);}
.btn-primary:hover svg{transform:translateX(4px);}
.btn-ghost{background:transparent;color:var(--c-brand);border-color:var(--c-brand);}
.btn-ghost:hover{background:var(--c-brand);color:#fff;}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-full{width:100%;}

.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--c-line);background:var(--c-surface);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;stroke:var(--c-ink);stroke-width:2;fill:none;}

.drawer{
  position:fixed;inset:0;z-index:90;display:none;
}
.drawer.is-open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(17,26,24,.45);}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(84vw,340px);
  background:var(--c-surface);
  padding:24px 22px;
  display:flex;flex-direction:column;gap:8px;
  overflow-y:auto;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);
  background:var(--c-surface);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.drawer-close svg{width:18px;height:18px;stroke:var(--c-ink);stroke-width:2;fill:none;}
.drawer-link{
  display:block;padding:14px 4px;font-size:16px;font-weight:500;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
}
.drawer-link.is-active{color:var(--c-brand);font-weight:700;}
.drawer .btn{margin-top:16px;}

/* ---------- Hero ---------- */
.hero{
  padding:56px 0 0;
  background:var(--c-paper);
}
.hero-row{min-height:clamp(520px,80vh,760px);align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-brand);
  background:rgba(15,76,67,.08);
  border-radius:6px;padding:6px 12px;margin-bottom:20px;
  letter-spacing:.02em;
}
.hero h1{margin-bottom:20px;max-width:12em;}
.hero-sub{
  font-size:19px;line-height:1.75;color:var(--c-ink-soft);
  max-width:34em;margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:24px;
  border-top:1px solid var(--c-line);
  padding-top:20px;
  font-size:13px;color:var(--c-muted);
}
.hero-meta b{color:var(--c-ink);font-weight:600;font-variant-numeric:tabular-nums;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--c-line);
}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(247,245,240,.18),rgba(15,76,67,.16));
  border-radius:var(--r-img);pointer-events:none;
}
.hero-status{
  position:absolute;right:16px;bottom:16px;
  background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:10px;
  padding:10px 14px;font-size:13px;color:var(--c-ink-soft);
  display:flex;align-items:center;gap:8px;
  box-shadow:0 6px 18px rgba(17,26,24,.08);
}
.dot{width:8px;height:8px;border-radius:50%;background:var(--c-brand-2);flex:0 0 auto;}

/* ---------- 板块通用 ---------- */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:40px;flex-wrap:wrap;
}
.section-head .lead{
  font-size:16px;color:var(--c-ink-soft);max-width:42em;margin-top:12px;
}
.link-more{
  position:relative;font-size:15px;font-weight:600;color:var(--c-brand);
  display:inline-flex;align-items:center;gap:6px;padding-bottom:2px;
}
.link-more::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--c-brand);transform:scaleX(0);transform-origin:left;
  transition:transform 200ms ease;
}
.link-more:hover::after{transform:scaleX(1);}
.link-more svg{width:15px;height:15px;stroke:currentColor;stroke-width:2;fill:none;}

/* ---------- 最新信息 ---------- */
.post-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  height:100%;
  display:flex;flex-direction:column;
  transition:transform var(--tr),box-shadow var(--tr);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);}
.post-thumb{overflow:hidden;border-radius:0;}
.post-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 600ms ease-out;}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.badge{
  align-self:flex-start;
  font-size:12px;font-weight:600;color:var(--c-brand);
  border:1px solid rgba(15,76,67,.35);
  border-radius:6px;padding:3px 9px;line-height:1.5;
}
.post-title{font-size:18px;font-weight:650;line-height:1.5;margin:0;}
.post-title a{
  color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-title a:hover{color:var(--c-brand);}
.post-excerpt{
  font-size:14px;line-height:1.7;color:var(--c-ink-soft);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin:0;
}
.post-meta{
  margin-top:auto;font-size:13px;color:var(--c-muted);
  font-variant-numeric:tabular-nums;
  display:flex;align-items:center;gap:10px;
  padding-top:12px;border-top:1px solid var(--c-line);
}
.cards-grid{margin-bottom:-30px;}
.cards-grid > .column{margin-bottom:30px;}

.empty-state{
  text-align:center;padding:56px 24px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
}
.empty-state svg{width:56px;height:56px;stroke:var(--c-muted);stroke-width:1.6;fill:none;margin:0 auto 16px;}
.empty-state p{color:var(--c-muted);margin-bottom:20px;}

/* ---------- 能力清单 ---------- */
.cap-list{border-top:1px solid var(--c-line);}
.cap-item{
  display:flex;align-items:center;gap:20px;
  padding:22px 12px;
  border-bottom:1px solid var(--c-line);
  transition:background var(--tr),transform var(--tr);
}
.cap-item:hover{background:var(--c-surface);transform:translateX(4px);}
.cap-num{
  font-size:15px;font-weight:700;color:var(--c-accent);
  font-variant-numeric:tabular-nums;flex:0 0 42px;
}
.cap-body{flex:1 1 auto;}
.cap-body h3{font-size:18px;margin-bottom:4px;}
.cap-body p{font-size:14px;color:var(--c-muted);margin:0;line-height:1.65;}
.cap-arrow{flex:0 0 auto;color:var(--c-muted);display:flex;}
.cap-arrow svg{width:18px;height:18px;stroke:currentColor;stroke-width:2;fill:none;}

/* ---------- 数据区 ---------- */
.stats{
  background:var(--c-ink);color:#fff;border-radius:0;
}
.stats h2,.stats p{color:#fff;}
.stats .section-head{margin-bottom:48px;}
.stats .lead{color:rgba(255,255,255,.72);}
.stat-cell{
  padding:28px 6px;
  border-top:1px solid rgba(255,255,255,.14);
}
.stat-num{
  font-size:clamp(40px,4.4vw,64px);font-weight:800;color:var(--c-accent);
  font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:-.02em;
}
.stat-num span{font-size:.42em;font-weight:700;margin-left:6px;color:rgba(255,255,255,.8);}
.stat-label{font-size:14px;color:rgba(255,255,255,.72);margin-top:10px;line-height:1.6;}

/* ---------- 横向轨道 ---------- */
.track-wrap{position:relative;}
.track{
  display:flex;gap:24px;overflow-x:auto;padding:4px 4px 20px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;
}
.track::-webkit-scrollbar{height:6px;}
.track::-webkit-scrollbar-thumb{background:var(--c-line);border-radius:999px;}
.track-card{
  flex:0 0 350px;max-width:350px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;scroll-snap-align:start;
  transition:transform var(--tr),box-shadow var(--tr);
}
.track-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);}
.track-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.track-body{padding:20px 22px 24px;}
.track-tag{
  display:inline-block;font-size:12px;font-weight:600;color:var(--c-brand);
  border:1px solid rgba(15,76,67,.3);border-radius:6px;padding:3px 9px;margin-bottom:14px;
}
.track-body h3{font-size:18px;margin-bottom:8px;}
.track-body p{font-size:14px;color:var(--c-muted);margin:0;}
.track-nav{display:flex;gap:12px;}
.track-btn{
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--c-line);background:var(--c-surface);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color var(--tr),background var(--tr);
}
.track-btn svg{width:18px;height:18px;stroke:var(--c-ink);stroke-width:2;fill:none;}
.track-btn:hover{border-color:var(--c-brand);background:rgba(15,76,67,.06);}

/* ---------- 步骤 ---------- */
.step{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:26px 28px;
  transition:transform var(--tr),box-shadow var(--tr);
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);}
.step-num{
  font-size:13px;font-weight:700;color:var(--c-accent);
  font-variant-numeric:tabular-nums;letter-spacing:.06em;
}
.step h3{margin:10px 0 10px;}
.step p{font-size:15px;color:var(--c-ink-soft);margin-bottom:14px;}
.step-offset{margin-top:40px;}
.steps-grid > .column{margin-bottom:32px;}

/* ---------- FAQ ---------- */
.faq-box{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;text-align:left;background:transparent;border:0;cursor:pointer;
  padding:20px 24px;
  font-size:18px;font-weight:600;color:var(--c-ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  transition:color var(--tr);
}
.faq-q:hover{color:var(--c-brand);}
.faq-q .sign{
  flex:0 0 auto;width:22px;height:22px;position:relative;
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-accent);
  transform:translate(-50%,-50%);transition:transform 200ms ease,opacity 200ms ease;
}
.faq-q .sign::before{width:14px;height:2px;}
.faq-q .sign::after{width:2px;height:14px;}
.faq-item.is-open .faq-q .sign::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 260ms ease;
}
.faq-a-inner{
  padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--c-ink-soft);
}

/* ---------- 联系 / CTA ---------- */
.contact-block{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:32px 30px;
}
.contact-line{
  display:flex;align-items:flex-start;gap:12px;
  padding:12px 0;font-size:15px;color:var(--c-ink-soft);
  border-bottom:1px dashed var(--c-line);
}
.contact-line:last-of-type{border-bottom:0;}
.contact-line svg{width:18px;height:18px;stroke:var(--c-brand);stroke-width:2;fill:none;flex:0 0 auto;margin-top:4px;}
.contact-line b{color:var(--c-ink);font-weight:600;}

.form-field{margin-bottom:18px;}
.form-field label{
  display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px;
}
.form-field input[type="text"],
.form-field input[type="email"],
.form-field input[type="tel"],
.form-field textarea{
  width:100%;height:48px;
  border:1px solid var(--c-line);border-radius:var(--r-input);
  background:var(--c-paper);
  padding:0 14px;font-size:15px;color:var(--c-ink);font-family:inherit;
  transition:border-color var(--tr),box-shadow var(--tr),background var(--tr);
}
.form-field textarea{height:auto;min-height:118px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-field input:focus,.form-field textarea:focus{
  outline:none;background:var(--c-surface);
  border-color:var(--c-brand);
  box-shadow:0 0 0 3px rgba(15,76,67,.18);
}
.form-check{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--c-muted);margin:6px 0 20px;}
.form-check input{width:18px;height:18px;margin-top:3px;accent-color:var(--c-brand);}
.form-hint{font-size:13px;color:var(--c-muted);margin-top:12px;}

.cta-band{
  background:var(--c-brand);
  border-radius:var(--r-card);
  padding:38px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:8px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;margin:0;max-width:40em;}
.cta-band .btn-primary{background:#fff;color:var(--c-brand);}
.cta-band .btn-primary:hover{background:#F2EFE8;color:var(--c-brand);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);color:rgba(255,255,255,.72);
  margin-top:var(--sec-gap);
  padding:72px 0 0;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-mark{background:var(--c-brand-2);}
.footer-brand span{color:#fff;font-size:17px;font-weight:700;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:26em;}
.footer-col h4{
  color:rgba(255,255,255,.8);font-size:14px;font-weight:600;
  margin-bottom:16px;letter-spacing:.02em;
}
.footer-col a{
  display:block;font-size:14px;line-height:2.1;color:rgba(255,255,255,.68);
}
.footer-col a:hover{color:var(--c-accent);}
.footer-col p{font-size:14px;line-height:2.1;color:rgba(255,255,255,.68);margin:0;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 340ms ease,transform 340ms ease;}
.reveal.is-visible{opacity:1;transform:none;}
.reveal.d1{transition-delay:60ms;}
.reveal.d2{transition-delay:120ms;}
.reveal.d3{transition-delay:180ms;}
.reveal.d4{transition-delay:240ms;}
.reveal.d5{transition-delay:300ms;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .nav-search input{width:180px;}
  .nav-center{gap:18px;}
}
@media screen and (max-width:991px){
  :root{--sec-gap:72px;}
  .container{padding-left:24px;padding-right:24px;}
  .nav-center,.nav-search,.nav-icons{display:none;}
  .nav-toggle{display:flex;}
  .nav-wrap{height:72px !important;}
  .hero-row{min-height:auto;padding:24px 0 0;}
  .hero h1{max-width:100%;}
  .hero-sub{font-size:18px;}
  .step-offset{margin-top:0;}
}
@media screen and (max-width:767px){
  :root{--sec-gap:52px;}
  .container{padding-left:18px;padding-right:18px;}
  .section{padding:var(--sec-gap) 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px;}
  .hero{padding-top:32px;}
  .hero-actions{flex-direction:column;align-items:stretch;gap:12px;}
  .hero-actions .btn{width:100%;}
  .hero-meta{gap:16px;flex-direction:column;}
  .btn{padding:14px 22px;}
  .track-card{flex:0 0 84%;max-width:84%;}
  .cta-band{padding:28px 22px;flex-direction:column;align-items:flex-start;}
  .cta-band .btn{width:100%;}
  .contact-block{padding:24px 20px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:479px){
  body{font-size:15px;}
  .brand-text{font-size:15px;}
  .hero-sub{font-size:16px;}
  .step{padding:20px 18px;}
  .faq-q{padding:16px 18px;font-size:16px;}
  .faq-a-inner{padding:0 18px 18px;}
  .post-body{padding:16px 16px 18px;}
}

/* roulang page: article */
:root{
  --c-ink:#111A18;
  --c-ink-soft:#3C4643;
  --c-brand:#0F4C43;
  --c-brand-2:#1C7565;
  --c-accent:#C05B3E;
  --c-accent-h:#A94B31;
  --c-paper:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-line:#E3DFD6;
  --c-muted:#6B746F;
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --r-badge:6px;
  --sh-hover:0 1px 2px rgba(17,26,24,.04),0 14px 34px rgba(17,26,24,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:88px;
  --font:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-brand-2);}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;font-family:var(--font);letter-spacing:-.01em;}
p{margin:0 0 1.2em;}
ul,ol{margin:0 0 1.2em;padding-left:1.4em;}
li{margin-bottom:8px;}
:focus{outline:none;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;box-shadow:0 0 0 4px #fff;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.section--paper{background:var(--c-paper);}
.section--surface{background:var(--c-surface);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.sec-head h2{font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1.25;}
.sec-head p{color:var(--c-muted);font-size:14px;margin:8px 0 0;max-width:640px;}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--c-brand);border:1px solid var(--c-line);border-radius:var(--r-badge);padding:4px 10px;background:var(--c-surface);}

/* ============ header / nav ============ */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface);border-bottom:1px solid transparent;transition:height .22s var(--ease),border-color .22s var(--ease);}
.site-header.is-scrolled{border-bottom-color:var(--c-line);box-shadow:0 1px 0 rgba(17,26,24,.02);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:var(--nav-h);transition:height .22s var(--ease);}
.site-header.is-scrolled .nav-wrap{height:64px;}
.nav-left{display:flex;align-items:center;gap:18px;min-width:0;}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--c-ink);white-space:nowrap;}
.brand:hover{color:var(--c-brand);}
.brand-mark{width:32px;height:32px;border-radius:10px;background:var(--c-brand);display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;}
.brand-mark svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.nav-icons{display:flex;align-items:center;gap:6px;}
.nav-icons a{width:36px;height:36px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;color:var(--c-ink-soft);}
.nav-icons a:hover{color:var(--c-brand);background:rgba(15,76,67,.06);}
.nav-icons svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.nav-center{display:flex;align-items:center;gap:26px;}
.nav-center a{position:relative;font-size:15px;font-weight:500;color:var(--c-ink-soft);padding:6px 0;white-space:nowrap;}
.nav-center a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);}
.nav-center a:hover{color:var(--c-ink);}
.nav-center a:hover::after,.nav-center a.is-active::after{transform:scaleX(1);}
.nav-center a.is-active{color:var(--c-ink);font-weight:600;}
.nav-right{display:flex;align-items:center;gap:14px;}
.nav-search{position:relative;width:220px;}
.nav-search input{width:100%;height:40px;border:1px solid var(--c-line);border-radius:var(--r-input);background:var(--c-paper);padding:0 14px 0 38px;font-size:14px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);}
.nav-search input::placeholder{color:var(--c-muted);}
.nav-search input:focus{background:var(--c-surface);border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(15,76,67,.18);}
.nav-search i{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--c-muted);font-size:13px;}
.btn{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;line-height:1;border-radius:999px;padding:14px 28px;transition:all .22s var(--ease);white-space:nowrap;}
.btn i{transition:transform .22s var(--ease);font-size:13px;}
.btn-primary{background:var(--c-accent);color:#fff;}
.btn-primary:hover{background:var(--c-accent-h);color:#fff;transform:translateY(-2px);}
.btn-primary:hover i{transform:translateX(4px);}
.btn-ghost{background:transparent;border:1px solid var(--c-brand);color:var(--c-brand);border-radius:10px;padding:12px 22px;}
.btn-ghost:hover{background:var(--c-brand);color:#fff;}
.btn-sm{padding:11px 20px;font-size:14px;}
.nav-burger{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);align-items:center;justify-content:center;color:var(--c-ink);}
.nav-burger:hover{border-color:var(--c-brand);color:var(--c-brand);}
.mobile-drawer{display:none;border-top:1px solid var(--c-line);background:var(--c-surface);}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .inner{padding:18px 0 26px;display:flex;flex-direction:column;gap:6px;}
.mobile-drawer .inner a{padding:12px 0;font-size:16px;font-weight:500;color:var(--c-ink-soft);border-bottom:1px solid var(--c-line);}
.mobile-drawer .inner a.is-active{color:var(--c-brand);font-weight:600;}
.mobile-drawer .drawer-search{margin-top:14px;}
.mobile-drawer .drawer-search input{width:100%;height:48px;border:1px solid var(--c-line);border-radius:var(--r-input);background:var(--c-paper);padding:0 16px;}

/* ============ 面包屑 / 文章头 ============ */
.breadcrumb-bar{background:var(--c-surface);border-bottom:1px solid var(--c-line);}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--c-muted);padding:16px 0;line-height:1.6;}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-brand);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:#C4C0B6;}
.breadcrumb .current{color:var(--c-ink-soft);font-weight:500;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.article-hero{background:var(--c-surface);padding:56px 0 0;}
.article-hero .eyebrow{margin-bottom:18px;}
.article-title{font-size:clamp(28px,3.6vw,40px);font-weight:700;line-height:1.3;max-width:900px;margin-bottom:22px;}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--c-muted);padding-bottom:24px;border-bottom:1px solid var(--c-line);}
.article-meta .badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--c-brand);border:1px solid var(--c-line);border-radius:var(--r-badge);padding:4px 10px;background:var(--c-paper);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C4C0B6;}
.article-meta .num{font-variant-numeric:tabular-nums;}

/* ============ 正文 ============ */
.article-body-wrap{padding:56px 0 0;background:var(--c-surface);}
.article-layout{display:grid;grid-template-columns:minmax(0,760px) 1fr;gap:56px;align-items:start;}
.article-content{font-size:17px;line-height:1.9;color:var(--c-ink);min-width:0;}
.article-content>p:first-of-type{font-size:18px;color:var(--c-ink-soft);}
.article-content h2{font-size:22px;font-weight:700;line-height:1.45;margin:40px 0 16px;}
.article-content h3{font-size:19px;font-weight:650;line-height:1.5;margin:32px 0 14px;}
.article-content h4{font-size:17px;font-weight:600;margin:24px 0 12px;}
.article-content ul,.article-content ol{padding-left:1.4em;margin:0 0 1.2em;}
.article-content li{margin-bottom:8px;line-height:1.75;}
.article-content blockquote{margin:24px 0;padding:18px 22px;border-left:3px solid var(--c-accent);background:var(--c-paper);border-radius:0 var(--r-img) var(--r-img) 0;color:var(--c-ink-soft);font-size:16px;}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:var(--r-img);border:1px solid var(--c-line);margin:24px 0 10px;}
.article-content figure{margin:24px 0;}
.article-content figcaption{font-size:13px;color:var(--c-muted);text-align:center;}
.article-content table{width:100%;border-collapse:collapse;font-size:15px;margin:24px 0;display:block;overflow-x:auto;white-space:nowrap;}
.article-content th,.article-content td{border:1px solid var(--c-line);padding:12px 16px;text-align:left;}
.article-content th{background:var(--c-paper);font-weight:600;color:var(--c-ink);}
.article-content pre{background:var(--c-ink);color:#EDEAE4;padding:18px 20px;border-radius:var(--r-img);overflow-x:auto;font-size:14px;line-height:1.7;}
.article-content code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;}
.article-content a{text-decoration:underline;text-underline-offset:3px;}
.article-content hr{border:0;border-top:1px solid var(--c-line);margin:36px 0;}

.article-aside{position:sticky;top:110px;display:flex;flex-direction:column;gap:20px;}
.aside-card{background:var(--c-paper);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;}
.aside-card h4{font-size:15px;font-weight:600;margin-bottom:14px;color:var(--c-ink);}
.aside-card ul{list-style:none;padding:0;margin:0;}
.aside-card li{margin-bottom:10px;font-size:14px;line-height:1.7;}
.aside-card li a{color:var(--c-ink-soft);}
.aside-card li a:hover{color:var(--c-brand);}
.aside-card p{font-size:14px;color:var(--c-muted);margin:0 0 14px;line-height:1.75;}
.aside-note{background:var(--c-brand);border:0;color:#fff;}
.aside-note h4{color:#fff;}
.aside-note p{color:rgba(255,255,255,.82);}
.aside-note .btn{background:#fff;color:var(--c-brand);border-radius:999px;padding:12px 22px;font-size:14px;width:100%;justify-content:center;}
.aside-note .btn:hover{background:rgba(255,255,255,.9);color:var(--c-brand);transform:translateY(-2px);}

/* ============ 空态 ============ */
.empty-state{text-align:center;padding:64px 24px;border:1px dashed var(--c-line);border-radius:var(--r-card);background:var(--c-paper);max-width:760px;}
.empty-state .icon{width:72px;height:72px;margin:0 auto 18px;border-radius:50%;background:var(--c-surface);border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;color:var(--c-brand);}
.empty-state .icon svg{width:30px;height:30px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.empty-state h3{font-size:20px;font-weight:650;margin-bottom:10px;}
.empty-state p{color:var(--c-muted);font-size:15px;margin-bottom:22px;}

/* ============ 文末区 ============ */
.tag-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin:48px 0 0;padding-top:28px;border-top:1px solid var(--c-line);}
.tag-row .label{font-size:13px;color:var(--c-muted);margin-right:4px;}
.tag{display:inline-flex;align-items:center;font-size:13px;font-weight:600;color:var(--c-brand);border:1px solid var(--c-line);border-radius:var(--r-badge);padding:5px 12px;background:var(--c-surface);}
.tag:hover{border-color:var(--c-brand);color:var(--c-brand-2);}
.link-row{display:flex;flex-wrap:wrap;gap:28px;margin:28px 0 0;}
.text-link{position:relative;display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-brand);}
.text-link::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;background:var(--c-brand);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);}
.text-link:hover::after{transform:scaleX(1);}
.text-link i{font-size:12px;}

.related-section{padding:72px 0 0;background:var(--c-surface);}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:#D9D4C8;}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,rgba(15,76,67,.10),rgba(28,117,101,.06));}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease-out;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:18px;font-weight:650;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body h3 a{color:var(--c-ink);}
.card-body h3 a:hover{color:var(--c-brand);}
.card-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--c-muted);margin-top:auto;}
.card-meta .num{font-variant-numeric:tabular-nums;}

/* ============ 上一篇 / 下一篇 ============ */
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:56px;}
.prevnext a{display:block;border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px 22px;background:var(--c-paper);transition:all .22s var(--ease);}
.prevnext a:hover{background:var(--c-surface);border-color:#D9D4C8;box-shadow:var(--sh-hover);transform:translateY(-2px);}
.prevnext .k{display:block;font-size:13px;color:var(--c-muted);margin-bottom:8px;}
.prevnext .t{font-size:15px;font-weight:600;color:var(--c-ink);line-height:1.5;}
.prevnext .align-right{text-align:right;}

/* ============ FAQ ============ */
.faq-wrap{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:20px 24px;font-size:18px;font-weight:600;color:var(--c-ink);transition:background .2s var(--ease);}
.faq-q:hover{background:var(--c-paper);}
.faq-q .ic{flex:0 0 auto;width:22px;height:22px;position:relative;}
.faq-q .ic::before,.faq-q .ic::after{content:"";position:absolute;background:var(--c-brand);border-radius:2px;transition:transform .2s var(--ease);}
.faq-q .ic::before{left:0;right:0;top:10px;height:2px;}
.faq-q .ic::after{top:0;bottom:0;left:10px;width:2px;}
.faq-item.is-open .faq-q .ic::after{transform:scaleY(0);}
.faq-a{display:none;padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--c-ink-soft);}
.faq-item.is-open .faq-a{display:block;}

/* ============ CTA ============ */
.cta-band{background:var(--c-brand);color:#fff;border-radius:var(--r-card);padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);font-weight:700;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.8);font-size:15px;margin:0;max-width:640px;}
.cta-band .btn{background:#fff;color:var(--c-brand);}
.cta-band .btn:hover{background:rgba(255,255,255,.9);color:var(--c-brand);transform:translateY(-2px);}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:96px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px;}
.footer-col h4{font-size:14px;font-weight:600;color:rgba(255,255,255,.8);margin-bottom:16px;letter-spacing:.04em;}
.footer-col a{display:block;font-size:14px;line-height:2.1;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--c-accent);}
.footer-col p{font-size:14px;line-height:2.1;color:rgba(255,255,255,.62);margin:0;}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);}
.site-footer .row{row-gap:36px;}

/* ============ 回到顶部 ============ */
.to-top{position:fixed;right:28px;bottom:28px;width:44px;height:44px;border-radius:50%;background:var(--c-surface);border:1px solid var(--c-line);color:var(--c-brand);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 22px rgba(17,26,24,.10);opacity:0;visibility:hidden;transform:translateY(8px);transition:all .28s var(--ease);z-index:70;}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--c-brand);color:#fff;border-color:var(--c-brand);}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .34s var(--ease),transform .34s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  .card-media img{transition:none;}
}

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:36px;}
}
@media screen and (max-width:991px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .nav-center{display:none;}
  .nav-search{display:none;}
  .nav-burger{display:inline-flex;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:48px;}
  .article-aside{position:static;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media screen and (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:52px 0;}
  .section--tight{padding:44px 0;}
  .nav-right .btn-ghost{display:none;}
  .btn{width:100%;justify-content:center;}
  .nav-right .btn{width:auto;}
  .article-hero{padding:36px 0 0;}
  .article-body-wrap{padding:36px 0 0;}
  .article-content{font-size:16px;}
  .cta-band{padding:32px 24px;}
  .prevnext{grid-template-columns:1fr;}
  .prevnext .align-right{text-align:left;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .site-footer{padding-top:52px;margin-top:64px;}
  .breadcrumb .current{max-width:200px;}
}
@media screen and (max-width:479px){
  body{font-size:15px;}
  .article-title{font-size:26px;}
  .article-content{font-size:15.5px;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a{padding:0 18px 18px;}
  .card-body{padding:18px;}
  .to-top{right:16px;bottom:16px;}
}

/* roulang page: category1 */
:root{
  --c-ink:#111A18;
  --c-ink-soft:#3C4643;
  --c-brand:#0F4C43;
  --c-brand-2:#1C7565;
  --c-accent:#C05B3E;
  --c-accent-dark:#A94B31;
  --c-paper:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-line:#E3DFD6;
  --c-muted:#6B746F;
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --shadow-hover:0 1px 2px rgba(17,26,24,.04), 0 14px 34px rgba(17,26,24,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-paper);
  color:var(--c-ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-brand);text-decoration:none;}
a:hover{color:var(--c-brand-2);}
h1,h2,h3,h4{margin:0;font-family:var(--font-cn);color:var(--c-ink);}
h1{font-size:clamp(34px,5.2vw,56px);font-weight:800;line-height:1.16;letter-spacing:-.01em;}
h2{font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1.25;}
h3{font-size:20px;font-weight:650;line-height:1.4;}
h4{font-size:17px;font-weight:600;line-height:1.5;}
p{margin:0 0 16px;max-width:680px;}
ul,ol{margin:0 0 16px;padding-left:1.4em;}
li{font-size:16px;line-height:1.75;margin-bottom:8px;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;box-shadow:0 0 0 4px #fff;}

/* ---------- 栅格 ---------- */
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%;}
.row{display:flex;flex-wrap:wrap;margin-left:-16px;margin-right:-16px;}
.column{float:none;padding-left:16px;padding-right:16px;flex:0 0 auto;width:100%;max-width:100%;}
.small-12{width:100%;}
@media (min-width:768px){
  .medium-6{width:50%;}
  .medium-4{width:33.3333%;}
}
@media (min-width:1024px){
  .large-3{width:25%;}
  .large-4{width:33.3333%;}
  .large-5{width:41.6667%;}
  .large-6{width:50%;}
  .large-7{width:58.3333%;}
  .large-8{width:66.6667%;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--c-paper);
  border-bottom:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{
  background:var(--c-surface);
  border-bottom-color:var(--c-line);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:88px;
  transition:height .22s var(--ease);
}
.site-header.is-scrolled .nav-wrap{height:64px;}
.nav-left{display:flex;align-items:center;gap:18px;min-width:0;}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:700;font-size:18px;letter-spacing:-.01em;white-space:nowrap;}
.brand:hover{color:var(--c-brand);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  background:var(--c-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
}
.brand-mark svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.icon-links{display:flex;align-items:center;gap:6px;}
.icon-link{
  width:34px;height:34px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  color:var(--c-ink-soft);transition:color .2s var(--ease),background .2s var(--ease);
}
.icon-link svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.icon-link:hover{color:var(--c-brand);background:rgba(15,76,67,.07);}
.nav-center{display:flex;align-items:center;gap:26px;}
.nav-center a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-ink-soft);
  padding:6px 0;transition:color .2s var(--ease);
}
.nav-center a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-center a:hover{color:var(--c-ink);}
.nav-center a:hover::after{transform:scaleX(1);}
.nav-center a.is-active{color:var(--c-ink);font-weight:600;}
.nav-center a.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-search{
  position:relative;width:220px;
}
.nav-search input{
  width:100%;height:42px;border-radius:var(--r-input);
  border:1px solid var(--c-line);background:var(--c-surface);
  padding:0 14px 0 38px;color:var(--c-ink);font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input::placeholder{color:var(--c-muted);}
.nav-search input:focus{
  outline:none;border-color:var(--c-brand);
  box-shadow:0 0 0 3px rgba(15,76,67,.18);
}
.nav-search svg{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  width:17px;height:17px;fill:none;stroke:var(--c-muted);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 26px;border-radius:999px;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{background:var(--c-accent);color:#fff;}
.btn-primary:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-2px);}
.btn-primary svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;transition:transform .22s var(--ease);}
.btn-primary:hover svg{transform:translateX(4px);}
.btn-outline{
  background:transparent;color:var(--c-brand);
  border:1px solid var(--c-brand);border-radius:10px;padding:13px 24px;
}
.btn-outline:hover{background:var(--c-brand);color:#fff;}
.btn-sm{padding:11px 20px;font-size:14px;}
.btn-block{width:100%;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--c-line);background:var(--c-surface);
  align-items:center;justify-content:center;color:var(--c-ink);
}
.nav-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;}
@media (max-width:1100px){
  .nav-search{width:170px;}
  .nav-center{gap:18px;}
}
@media (max-width:991px){
  .nav-center,.nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
}
@media (max-width:520px){
  .icon-links{display:none;}
  .nav-right .btn-outline{display:none;}
}
/* 抽屉 */
.drawer{
  position:fixed;inset:0;z-index:80;display:none;
}
.drawer.is-open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(17,26,24,.42);}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(340px,86vw);
  background:var(--c-surface);padding:24px 22px;
  display:flex;flex-direction:column;gap:8px;
  box-shadow:-14px 0 40px rgba(17,26,24,.16);
  overflow-y:auto;
}
.drawer-panel h3{font-size:14px;color:var(--c-muted);font-weight:600;margin-bottom:6px;letter-spacing:.04em;}
.drawer-panel a{
  font-size:16px;color:var(--c-ink);padding:13px 4px;border-bottom:1px solid var(--c-line);
}
.drawer-panel a.is-active{color:var(--c-brand);font-weight:600;}
.drawer-close{
  align-self:flex-end;width:40px;height:40px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);color:var(--c-ink);margin-bottom:8px;
}
.drawer-close svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;}
.drawer-panel .btn{margin-top:12px;}

/* ---------- Hero 条带 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  padding:48px 0 52px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center right;
  opacity:.12;pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.crumbs{
  font-size:13px;color:var(--c-muted);margin-bottom:18px;
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
}
.crumbs a{color:var(--c-muted);}
.crumbs a:hover{color:var(--c-brand);}
.crumbs span.sep{color:#C9C4B8;}
.crumbs .current{color:var(--c-ink-soft);}
.page-hero .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-brand);
  border:1px solid var(--c-line);background:var(--c-paper);
  border-radius:6px;padding:6px 12px;margin-bottom:20px;
}
.page-hero h1{max-width:920px;}
.page-hero .lead{
  margin-top:18px;font-size:19px;line-height:1.75;color:var(--c-ink-soft);max-width:760px;
}
.hero-meta{
  margin-top:26px;padding-top:20px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:12px 28px;align-items:center;
  font-size:13px;color:var(--c-muted);
}
.hero-meta strong{color:var(--c-ink);font-weight:600;font-variant-numeric:tabular-nums;}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;}
.section-sm{padding:72px 0;}
.section-title{margin-bottom:14px;}
.section-intro{max-width:680px;color:var(--c-ink-soft);font-size:16px;margin-bottom:0;}
.section-head{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:flex-end;margin-bottom:44px;}
.link-more{
  position:relative;font-size:15px;font-weight:600;color:var(--c-brand);white-space:nowrap;
}
.link-more::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;
  background:var(--c-brand);transform:scaleX(0);transform-origin:right;
  transition:transform .2s var(--ease);
}
.link-more:hover::after{transform:scaleX(1);transform-origin:left;}

/* ---------- 左文右图 ---------- */
.article-copy p{font-size:16px;line-height:1.85;color:var(--c-ink-soft);max-width:640px;}
.article-copy h2{margin-bottom:20px;}
.article-copy h3{margin:32px 0 12px;color:var(--c-ink);}
.article-copy strong{color:var(--c-ink);font-weight:600;}
.figure-card{
  border:1px solid var(--c-line);border-radius:var(--r-card);
  background:var(--c-surface);overflow:hidden;
  transition:box-shadow .22s var(--ease),transform .22s var(--ease);
}
.figure-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.figure-media{overflow:hidden;border-radius:var(--r-img);margin:10px 10px 0;aspect-ratio:16/10;}
.figure-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease-out;}
.figure-card:hover .figure-media img{transform:scale(1.03);}
.figure-body{padding:20px 22px 22px;}
.figure-body h3{font-size:17px;margin-bottom:8px;}
.figure-body p{font-size:14px;line-height:1.7;color:var(--c-muted);margin-bottom:0;max-width:none;}
.figure-list{margin-top:14px;display:flex;flex-direction:column;gap:10px;}
.figure-list div{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:var(--c-ink-soft);line-height:1.65;
}
.figure-list svg{width:16px;height:16px;flex:0 0 16px;margin-top:5px;fill:none;stroke:var(--c-brand);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 清单 ---------- */
.checklist{
  border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);
  padding:8px 26px;margin-top:36px;
}
.checklist-item{
  display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--c-line);
}
.checklist-item:last-child{border-bottom:0;}
.checklist-num{
  font-size:14px;font-weight:700;color:var(--c-accent);
  font-variant-numeric:tabular-nums;flex:0 0 34px;padding-top:2px;letter-spacing:.04em;
}
.checklist-item h4{margin-bottom:6px;font-size:17px;}
.checklist-item p{margin-bottom:0;font-size:15px;line-height:1.75;color:var(--c-ink-soft);max-width:640px;}

/* ---------- 步骤条 ---------- */
.steps{display:flex;flex-direction:column;gap:0;border-left:1px solid var(--c-line);padding-left:0;margin-top:8px;}
.step{
  position:relative;padding:0 0 34px 34px;margin-left:-1px;border-left:1px solid transparent;
}
.step::before{
  content:"";position:absolute;left:-7px;top:6px;width:13px;height:13px;border-radius:50%;
  background:var(--c-surface);border:2px solid var(--c-brand);
}
.step:last-child{padding-bottom:0;}
.step .step-idx{font-size:13px;font-weight:700;color:var(--c-accent);font-variant-numeric:tabular-nums;letter-spacing:.06em;}
.step h4{margin:6px 0 8px;font-size:17px;}
.step p{margin-bottom:0;font-size:15px;color:var(--c-ink-soft);max-width:620px;}

/* ---------- 对照表 ---------- */
.table-wrap{
  border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);
  overflow-x:auto;margin-top:8px;
}
table.compare{border-collapse:collapse;width:100%;min-width:640px;font-size:15px;}
table.compare caption{
  text-align:left;font-size:13px;color:var(--c-muted);padding:16px 22px 0;
}
table.compare th,table.compare td{
  text-align:left;padding:16px 22px;border-bottom:1px solid var(--c-line);vertical-align:top;
}
table.compare thead th{
  font-size:13px;font-weight:600;color:var(--c-muted);letter-spacing:.03em;
  background:var(--c-paper);
}
table.compare tbody th{font-weight:600;color:var(--c-ink);width:26%;}
table.compare td{color:var(--c-ink-soft);line-height:1.7;}
table.compare tbody tr:last-child th,table.compare tbody tr:last-child td{border-bottom:0;}
table.compare tbody tr:hover td,table.compare tbody tr:hover th{background:#FBFAF6;}

/* ---------- 提示条 ---------- */
.notice{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--c-ink);color:#fff;border-radius:var(--r-card);
  padding:24px 26px;margin-top:36px;
}
.notice svg{width:22px;height:22px;flex:0 0 22px;margin-top:3px;fill:none;stroke:var(--c-accent);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.notice h4{color:#fff;font-size:16px;margin-bottom:6px;}
.notice p{color:rgba(255,255,255,.78);font-size:14px;line-height:1.7;margin-bottom:0;max-width:720px;}

/* ---------- FAQ ---------- */
.faq-list{
  border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;font-size:18px;font-weight:600;color:var(--c-ink);
  transition:background .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:#FBFAF6;}
.faq-sign{
  position:relative;width:20px;height:20px;flex:0 0 20px;
  transition:transform .2s var(--ease);
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:var(--c-brand);border-radius:2px;
}
.faq-sign::before{left:0;top:9px;width:20px;height:2px;}
.faq-sign::after{left:9px;top:0;width:2px;height:20px;transition:opacity .2s var(--ease);}
.faq-item[open] .faq-sign{transform:rotate(180deg);}
.faq-item[open] .faq-sign::after{opacity:0;}
.faq-answer{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--c-ink-soft);}
.faq-answer p{margin-bottom:10px;max-width:700px;}
.faq-answer p:last-child{margin-bottom:0;}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--c-brand);color:#fff;
  border-radius:var(--r-card);
  padding:40px 44px;
  display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;margin:10px 0 0;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.btn-ghost-white{
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55);border-radius:10px;
}
.btn-ghost-white:hover{background:#fff;color:var(--c-brand);border-color:#fff;}
@media (max-width:767px){
  .cta-band{padding:30px 24px;gap:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}

/* ---------- 卡片宫格（小提示） ---------- */
.tip-grid{display:flex;flex-wrap:wrap;gap:24px;margin-top:36px;}
.tip-card{
  flex:1 1 260px;
  border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);
  padding:24px;transition:box-shadow .22s var(--ease),transform .22s var(--ease);
}
.tip-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.tip-card .badge{margin-bottom:14px;}
.tip-card h4{margin-bottom:8px;}
.tip-card p{font-size:14px;line-height:1.75;color:var(--c-muted);margin-bottom:0;max-width:none;}
.badge{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.02em;
  border:1px solid var(--c-line);border-radius:6px;padding:4px 10px;color:var(--c-brand);
  background:var(--c-paper);
}
.badge-muted{color:var(--c-muted);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.82);padding:72px 0 0;margin-top:96px;}
.site-footer .footer-brand{
  display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:16px;
}
.site-footer .footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:320px;}
.site-footer h4{color:rgba(255,255,255,.8);font-size:14px;font-weight:600;margin-bottom:14px;}
.footer-col{display:flex;flex-direction:column;gap:2px;margin-bottom:28px;}
.footer-col a{display:block;font-size:14px;line-height:2.1;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--c-accent);}
.footer-col p{font-size:14px;line-height:2.1;color:rgba(255,255,255,.62);margin:0;max-width:none;}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 30px;display:flex;flex-wrap:wrap;gap:10px 28px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);
}
@media (max-width:767px){
  .section{padding:56px 0;}
  .section-sm{padding:48px 0;}
  .site-footer{padding-top:52px;margin-top:56px;}
  .faq-item summary{font-size:16px;padding:18px 18px;}
  .faq-answer{padding:0 18px 20px;}
  .checklist{padding:4px 18px;}
  .page-hero{padding:36px 0 40px;}
  .figure-body{padding:18px;}
}
@media (max-width:480px){
  body{font-size:15px;}
  .page-hero .lead{font-size:17px;}
  .hero-meta{gap:8px 18px;}
}

/* 滚动入场 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .34s var(--ease),transform .34s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --c-ink:#111A18;
  --c-ink-soft:#3C4643;
  --c-brand:#0F4C43;
  --c-brand-2:#1C7565;
  --c-accent:#C05B3E;
  --c-paper:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-line:#E3DFD6;
  --c-muted:#6B746F;
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --shadow-card:0 1px 2px rgba(17,26,24,.04),0 14px 34px rgba(17,26,24,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --space-section:96px;
  --font-sans:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-paper);
  color:var(--c-ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-brand);text-decoration:none;}
a:hover{color:var(--c-brand-2);}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;}
p{margin:0 0 16px;}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- Foundation 覆盖 ---------- */
.row{max-width:1200px;margin-left:auto;margin-right:auto;display:flex;flex-wrap:wrap;}
.row.full{max-width:100%;}
.column,.columns{padding-left:16px;padding-right:16px;}
.row.tight{margin-left:-8px;margin-right:-8px;}
.row.tight>.column{padding-left:8px;padding-right:8px;}
body .button,body button.button{background:var(--c-brand);border-radius:999px;}

.container{
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.container.narrow{max-width:900px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(247,245,240,.97);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{
  background:var(--c-surface);
  border-bottom-color:var(--c-line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:88px;
  transition:height .25s var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:800;
  color:var(--c-ink);
  letter-spacing:-.01em;
  flex:0 0 auto;
}
.brand:hover{color:var(--c-brand);}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--c-brand);
  flex:0 0 auto;
}
.brand-mark svg{
  width:19px;height:19px;
  fill:none;stroke:#fff;stroke-width:2;
  stroke-linecap:round;stroke-linejoin:round;
}
.icon-links{display:flex;align-items:center;gap:6px;flex:0 0 auto;}
.icon-link{
  width:32px;height:32px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:9px;
  color:var(--c-muted);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.icon-link svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.icon-link:hover{color:var(--c-brand);background:rgba(15,76,67,.07);}
.nav-center{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:8px;
  flex:1 1 auto;
}
.nav-center a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--c-ink-soft);
  padding:6px 0;
  white-space:nowrap;
  transition:color .2s var(--ease);
}
.nav-center a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--c-accent);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s var(--ease);
}
.nav-center a:hover{color:var(--c-brand);}
.nav-center a:hover::after{transform:scaleX(1);}
.nav-center a.is-active{color:var(--c-ink);font-weight:600;}
.nav-center a.is-active::after{transform:scaleX(1);}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.nav-search{
  position:relative;
  width:220px;
}
.nav-search input{
  width:100%;
  height:42px;
  padding:0 14px 0 38px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-input);
  font-size:14px;
  outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input::placeholder{color:#9AA39E;}
.nav-search input:focus{
  border-color:var(--c-brand);
  box-shadow:0 0 0 3px rgba(15,76,67,.16);
}
.nav-search svg{
  position:absolute;
  left:12px;top:50%;
  transform:translateY(-50%);
  width:17px;height:17px;
  fill:none;stroke:var(--c-muted);stroke-width:2;stroke-linecap:round;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  padding:14px 28px;
  border-radius:999px;
  border:1px solid transparent;
  cursor:pointer;
  text-align:center;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.btn svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;transition:transform .22s var(--ease);}
.btn-primary{background:var(--c-accent);color:#fff;}
.btn-primary:hover{background:#A94B31;color:#fff;transform:translateY(-2px);}
.btn-primary:hover svg{transform:translateX(4px);}
.btn-secondary{
  background:transparent;
  border-color:var(--c-brand);
  color:var(--c-brand);
  border-radius:10px;
  padding:12px 22px;
}
.btn-secondary:hover{background:var(--c-brand);color:#fff;}
.btn-ghost{
  background:transparent;
  border-color:var(--c-line);
  color:var(--c-ink-soft);
  border-radius:10px;
  padding:12px 22px;
}
.btn-ghost:hover{border-color:var(--c-brand);color:var(--c-brand);}
.btn-sm{padding:11px 20px;font-size:14px;}
.btn-block{width:100%;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--c-brand);
  outline-offset:2px;
  box-shadow:0 0 0 2px #fff;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--c-line);
  background:var(--c-surface);
  border-radius:10px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:var(--c-ink);
  position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-drawer{
  display:none;
  border-top:1px solid var(--c-line);
  background:var(--c-surface);
  padding:18px 0 24px;
}
.nav-drawer.is-open{display:block;}
.nav-drawer a{
  display:block;
  padding:13px 0;
  font-size:15px;
  font-weight:500;
  color:var(--c-ink-soft);
  border-bottom:1px solid var(--c-line);
}
.nav-drawer a:last-of-type{border-bottom:0;}
.nav-drawer a.is-active{color:var(--c-brand);font-weight:700;}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:16px;}
.drawer-actions .btn{width:100%;}

/* ---------- 通用板块 ---------- */
main{display:block;}
.section{padding:var(--space-section) 0;}
.section.section-tight{padding-top:64px;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:40px;
}
.section-head h2{font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1.25;}
.section-head .section-sub{
  margin-top:12px;
  font-size:16px;
  color:var(--c-ink-soft);
  max-width:680px;
  line-height:1.8;
}
.text-link{
  position:relative;
  display:inline-block;
  font-size:15px;
  font-weight:600;
  color:var(--c-brand);
  padding-bottom:2px;
  white-space:nowrap;
}
.text-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:100%;height:1px;
  background:currentColor;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s var(--ease);
}
.text-link:hover::after{transform:scaleX(1);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--c-brand);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;
  background:var(--c-brand);
  display:inline-block;
}

/* ---------- 分类页 Hero 条带 ---------- */
.hero-band{
  position:relative;
  background:linear-gradient(0deg,rgba(247,245,240,.94),rgba(247,245,240,.94)),url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  border-bottom:1px solid var(--c-line);
  padding:36px 0 46px;
  overflow:hidden;
}
.hero-band::after{
  content:"";
  position:absolute;
  right:-120px;top:-80px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(15,76,67,.09),rgba(15,76,67,0) 68%);
  pointer-events:none;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:9px;
  font-size:13px;
  color:var(--c-muted);
  margin-bottom:20px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-brand);}
.breadcrumb .sep{color:#B9BEB8;}
.breadcrumb .current{color:var(--c-ink-soft);font-weight:600;}
.hero-band h1{
  font-size:clamp(34px,4.6vw,50px);
  font-weight:800;
  line-height:1.16;
  max-width:900px;
}
.hero-lead{
  margin-top:16px;
  font-size:18px;
  line-height:1.8;
  color:var(--c-ink-soft);
  max-width:680px;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:12.5px;
  font-weight:600;
  color:var(--c-brand);
  border:1px solid var(--c-line);
  background:var(--c-surface);
  border-radius:6px;
  padding:6px 12px;
}
.badge .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--c-brand-2);
  display:inline-block;
}
.badge.muted{color:var(--c-muted);}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  margin-top:30px;
  padding-top:22px;
  border-top:1px solid var(--c-line);
}
.hero-meta div{font-size:13px;color:var(--c-muted);}
.hero-meta strong{
  display:block;
  font-size:22px;
  font-weight:700;
  color:var(--c-ink);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
  margin-bottom:2px;
}

/* ---------- 宽表头矩阵 ---------- */
.matrix{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.matrix-head,.matrix-row{
  display:grid;
  grid-template-columns:1.35fr 1fr 1.5fr 1fr;
  gap:16px;
  align-items:center;
}
.matrix-head{
  background:rgba(15,76,67,.05);
  padding:16px 26px;
  font-size:13px;
  font-weight:700;
  color:var(--c-brand);
  letter-spacing:.03em;
  border-bottom:1px solid var(--c-line);
}
.matrix-row{
  padding:20px 26px;
  border-bottom:1px solid var(--c-line);
  transition:background .2s var(--ease);
}
.matrix-row:last-child{border-bottom:0;}
.matrix-row:hover{background:rgba(15,76,67,.03);}
.matrix-row .m-title{font-size:16px;font-weight:650;color:var(--c-ink);}
.matrix-row .m-state{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:600;
  color:var(--c-brand);
}
.matrix-row .m-state i{
  width:6px;height:6px;border-radius:50%;background:var(--c-brand-2);display:inline-block;
}
.matrix-row .m-state.warn{color:var(--c-accent);}
.matrix-row .m-state.warn i{background:var(--c-accent);}
.matrix-row .m-risk{font-size:14.5px;color:var(--c-ink-soft);line-height:1.7;}
.matrix-row .m-entry{font-size:14px;color:var(--c-muted);}
.matrix-note{
  margin-top:16px;
  font-size:13px;
  color:var(--c-muted);
}

/* ---------- 卡片宫格 ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.set-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px 26px 26px;
  display:flex;
  flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.set-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-card);
  border-color:#D8D3C7;
}
.set-card .card-icon{
  width:42px;height:42px;
  border-radius:11px;
  background:rgba(15,76,67,.07);
  display:inline-flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.set-card .card-icon svg{
  width:20px;height:20px;
  fill:none;stroke:var(--c-brand);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;
}
.set-card h3{font-size:20px;font-weight:650;line-height:1.4;margin-bottom:10px;}
.set-card p{font-size:15px;color:var(--c-ink-soft);line-height:1.8;margin-bottom:20px;}
.set-card .card-foot{margin-top:auto;}
.card-cover{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--c-line);
  margin-bottom:20px;
  aspect-ratio:16/10;
}
.card-cover img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .6s ease-out;
}
.set-card:hover .card-cover img{transform:scale(1.03);}

/* ---------- 时间轴 ---------- */
.timeline{
  position:relative;
  padding-left:34px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:9px;top:8px;bottom:8px;
  width:1px;
  background:var(--c-line);
}
.tl-item{
  position:relative;
  padding-bottom:34px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;
  left:-33px;top:6px;
  width:19px;height:19px;
  border-radius:50%;
  background:var(--c-surface);
  border:1px solid var(--c-line);
}
.tl-item::after{
  content:"";
  position:absolute;
  left:-28px;top:11px;
  width:9px;height:9px;
  border-radius:50%;
  background:var(--c-brand-2);
}
.tl-step{
  font-size:13px;
  font-weight:700;
  color:var(--c-accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:.06em;
  margin-bottom:6px;
  display:block;
}
.tl-item h3{font-size:20px;font-weight:650;margin-bottom:8px;}
.tl-item p{font-size:15px;color:var(--c-ink-soft);line-height:1.8;margin:0;max-width:640px;}

/* ---------- 深色数据区 ---------- */
.dark-band{
  background:var(--c-ink);
  color:#fff;
  padding:var(--space-section) 0;
}
.dark-band .eyebrow{color:#8FC7B9;}
.dark-band .eyebrow::before{background:#8FC7B9;}
.dark-band h2{color:#fff;font-size:clamp(26px,3.4vw,40px);line-height:1.25;}
.dark-band .lead{
  margin-top:14px;
  font-size:16px;
  line-height:1.8;
  color:rgba(255,255,255,.72);
  max-width:680px;
}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  margin-top:48px;
  border-top:1px solid rgba(255,255,255,.14);
}
.stat{
  padding:32px 24px 8px;
  border-right:1px solid rgba(255,255,255,.14);
}
.stat:last-child{border-right:0;}
.stat .num{
  font-size:clamp(40px,4.6vw,58px);
  font-weight:800;
  line-height:1;
  color:var(--c-accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.stat .num small{font-size:16px;font-weight:600;margin-left:4px;color:rgba(255,255,255,.7);}
.stat p{
  margin:14px 0 0;
  font-size:14px;
  line-height:1.7;
  color:rgba(255,255,255,.74);
}

/* ---------- FAQ ---------- */
.faq-list{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 24px;
  background:transparent;
  border:0;
  cursor:pointer;
  text-align:left;
  font-size:18px;
  font-weight:600;
  color:var(--c-ink);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.faq-q:hover{background:rgba(15,76,67,.04);color:var(--c-brand);}
.faq-q .faq-sign{
  position:relative;
  flex:0 0 auto;
  width:20px;height:20px;
}
.faq-q .faq-sign::before,.faq-q .faq-sign::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--c-brand);
  transform:translate(-50%,-50%);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.faq-q .faq-sign::before{width:14px;height:2px;}
.faq-q .faq-sign::after{width:2px;height:14px;}
.faq-item.is-open .faq-q{color:var(--c-brand);}
.faq-item.is-open .faq-q .faq-sign::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-a{
  display:none;
  padding:0 24px 24px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-ink-soft);
  max-width:760px;
}
.faq-item.is-open .faq-a{display:block;}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:rgba(15,76,67,.06);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  padding:52px 0;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;}
.cta-inner p{
  margin:10px 0 0;
  font-size:15px;
  color:var(--c-ink-soft);
  max-width:560px;
}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 咨询区 ---------- */
.contact-panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:34px 32px;
}
.contact-list{margin-top:22px;}
.contact-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:14px 0;
  border-bottom:1px solid var(--c-line);
  font-size:15px;
  color:var(--c-ink-soft);
}
.contact-list li:last-child{border-bottom:0;}
.contact-list svg{
  width:18px;height:18px;flex:0 0 auto;margin-top:4px;
  fill:none;stroke:var(--c-brand);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;
}
.field{margin-bottom:18px;}
.field label{
  display:block;
  font-size:13.5px;
  font-weight:600;
  color:var(--c-ink-soft);
  margin-bottom:8px;
}
.field input,.field textarea{
  width:100%;
  height:48px;
  padding:0 14px;
  background:var(--c-paper);
  border:1px solid var(--c-line);
  border-radius:var(--r-input);
  font-size:15px;
  outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{height:120px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus{
  background:var(--c-surface);
  border-color:var(--c-brand);
  box-shadow:0 0 0 3px rgba(15,76,67,.18);
}
.field input::placeholder,.field textarea::placeholder{color:#A7AFA9;}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--c-muted);line-height:1.7;}
.check input{width:18px;height:18px;margin-top:3px;flex:0 0 auto;accent-color:var(--c-brand);}
.field-hint{display:block;margin-top:6px;font-size:12px;color:var(--c-muted);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);
  color:rgba(255,255,255,.76);
  padding:72px 0 0;
  margin-top:0;
}
.site-footer .row{padding-bottom:8px;}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.footer-desc{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.66);
  max-width:340px;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:rgba(255,255,255,.86);
  margin-bottom:14px;
}
.footer-col a,.footer-col p{
  display:block;
  font-size:14px;
  line-height:2.1;
  color:rgba(255,255,255,.7);
  margin:0;
  transition:color .2s var(--ease);
}
.footer-col a:hover{color:var(--c-accent);}
.footer-bottom{
  margin-top:44px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 30px;
  display:flex;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ---------- 动效 ---------- */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .34s var(--ease),transform .34s var(--ease);
}
.reveal.is-in{opacity:1;transform:translateY(0);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .container{padding:0 24px;}
  .nav-search{width:170px;}
  .nav-center{gap:18px;}
}
@media screen and (max-width:991px){
  :root{--space-section:72px;}
  .nav-search{display:none;}
  .nav-center{display:none;}
  .icon-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-secondary{display:none;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat{border-bottom:1px solid rgba(255,255,255,.14);}
  .stat:nth-child(2){border-right:0;}
  .stat:nth-child(3),.stat:nth-child(4){border-bottom:0;}
  .matrix-head,.matrix-row{grid-template-columns:1.2fr 1fr;}
  .matrix-head span:nth-child(3),.matrix-head span:nth-child(4),
  .matrix-row .m-risk,.matrix-row .m-entry{grid-column:1 / -1;}
  .matrix-head span:nth-child(3),.matrix-head span:nth-child(4){display:none;}
  .matrix-row .m-risk{margin-top:6px;}
  .matrix-row .m-entry{color:var(--c-muted);margin-top:2px;}
}
@media screen and (max-width:767px){
  :root{--space-section:52px;}
  .container{padding:0 18px;}
  .row.tight{margin-left:-6px;margin-right:-6px;}
  .row.tight>.column{padding-left:6px;padding-right:6px;}
  .header-inner{height:64px;gap:12px;}
  .site-header.is-scrolled .header-inner{height:58px;}
  .brand{font-size:15.5px;}
  .brand-mark{width:30px;height:30px;}
  .header-actions .btn{padding:11px 18px;font-size:14px;}
  .hero-band{padding:26px 0 34px;}
  .hero-lead{font-size:16.5px;}
  .hero-meta{gap:20px;}
  .hero-meta strong{font-size:19px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .matrix-head{display:none;}
  .matrix-row{
    grid-template-columns:1fr;
    gap:6px;
    padding:18px 20px;
  }
  .matrix-row .m-title{font-size:16.5px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .contact-panel{padding:26px 20px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .site-footer{padding-top:52px;}
}
@media screen and (max-width:519px){
  body{font-size:15.5px;}
  .hero-band h1{font-size:clamp(27px,7.4vw,34px);}
  .set-card{padding:22px 20px;}
  .faq-q{font-size:16.5px;padding:18px 18px;}
  .faq-a{padding:0 18px 20px;}
  .stat{padding:26px 18px 6px;}
  .btn{padding:13px 22px;font-size:14.5px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
}